Spoke to him today real professional guy. Gonna drop the car off soon.. Does it matter if I send my car there modded jb4.dci.downpipes. They still gonna warranty the pump?

Well, don't quote me, but because the hpfp has its own warranty, it should be ok. BUT, any dealer can refuse to do the work with those mods. Imnsure you've heard it all already.
Glad Greg was able to help!